US2991296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for improving foam stability of foaming detergent composition and improved stabilizers therefor
Assignee: Individual
•
Filing: 1959-02-26
•
Granted: 1961-07-04
•
Expires: 1979-02-26
Abstract
No abstract record available.
Inventors
- 👤 Oscar L Scherr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:04
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0094; C11D1/00; C11D1/38; C11D1/52; C11D1/526
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
AS A NEW COMPOSITION OF MATTER AN ETHOXYLATED ALIPHATIC CARBOXYLIC ACID AMIDE OF ISOPROPANOLAMINE HAVING THE FOLLOWING STRUCTURAL FORMULA
Claim 2
Dependent Claim
19 words
AS A NEW COMPOSITION OF MATTER AN ETHOXYLATED ALIPHATIC CARBOXYLIC ACID AMIDE OF ISOPROPANOLAMINE HAVING THE FOLLOWING STRUCTURAL FORMULA
References Cited (Backward Citations)
US2702279A
Cited
US2757143A
Cited
US2085706A
Cited
US2520381A
Cited
US2677700A
Cited
US2881204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |